Ice-cream freezer.



No. 640,2!2. Patented Jan. 2, I900. H. A. MARTIN.

ICE CREAM FREEZER.

(Application filed Sept. 7, 1899.) (No Model.)

d m/ M Wi'fgesses xtm ripen Srnrns ATENT FFICE.

HENRY A. MARTIN, OF ATLANTA, GEORGIA.

lCE CREAlVl FREEZER.

SPECIFICATION forming part of Letters Patent No. 640,212, dated January2, 1900.

Application filed September 7, 1899. Serial No. 729,759. (No model.)

To all whom it may concern:

Be it known that I, HENRY A. MAnTiN,a citizen of the United States,residing at Atlanta, in the county of Fulton and State of Georgia, haveinvented a new and useful Ice-Cream Freezer, of which the following is aspecification.

This invention relates to ice-cream freezers of that class embodying anouter and an inner freezing agent, and has for its object to provideimproved means for applying the freezing agents to the cream, so as toobviate the labor of agitating the same.

It is further designed to prevent the cream from adhering to the innersides of the creamcan, to produce a smooth ice-cream free from lumps,and also to facilitate the removal of the inner freezing agent.

To these ends the present invention consists in the combination andarrangement of parts, as will be hereinafter more fully described, shownin the accompanying drawings, and particularly pointed out in theappended claims, it being understood thatchanges in the form,proportion, size, and minor details of construction maybe made withinthe scope of the appended claims without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a central longitudinal sectional view of anice-cream freezer constructed in accordance with the present invention.Fig. 2 is a horizontal transverse sectional view thereof. Fig. 3 is adetail perspective view of the can or receptacle for containing theinner freezing agent.

Corresponding parts in the several figures of the drawings aredesignated by like characters of reference.

Referring to the accompanying drawings, 1 designates a can or receptaclefor containing the cream-can and the freezing agents and is providedwith a suitable bail-handle 2 for convenience in transporting the devicefrom place to place. This can is preferably cylindrical in shape andformed of metal, although a wooden bucket or tub may be employed withoutimpairing the operation of the device. Located centrally within theouter receptacle is an upright cylindrical casing 3, which is open atits upper end and is formed of wirescreen or other suitable foraminonsor perforate material. Extending across the bottom of the outerreceptacle and diametrically within the casing 3 is a pair of parallelribs 4, the purpose of which will be hereinafter more fully described.

Loosely fitted within the casing 3 is the cylindrical cream-can 5, whichis closed at the bottom and open at .the upper end thereof. Extendingdiametrically across the exterior of the bottom of the cream-can is arib (i, which is adapted to fit between the parallel ribs upon the innerside of the bottom of the outer receptacle, and thereby prevent turningof the cream-can or inner receptacle.

The means for containing the inner freezing agent comprises an invertedsubstantially conical can 7, which is closed at its lower end and openat the top thereof. As best indicated in Fig. 1 of the drawings, thisconical can is fitted within the cream-can, terminating short of thebottom thereof, and provided at its upper open end with an outer annularflange 8, having an upstanding peripheral rim 9. This flange rests uponthe upper end of the cream-can, so as to space the bottom of the conicalcan above that of the cream-can,

and also forms a cover both for the creamcan and the outer receptacle. Asuitable handle 10, preferably formed of wire in substantiallyinverted-U shape, having the op posite ends secured to the inner sidesof the in length to the inner receptacle and the former wing extendingthe entire length of the cream-can, for a purpose as will be hereinaftermore fully described. Each wing is provided with a wooden strip 12,extending the entire length of the wing and projecting beyond the outerlongitudinal edge thereof, and also forming substantially soft scrapingedges, so as to prevent scratching off portions of the adjacentsurfaces.

In the operation of the device the outer receptacle is filled withcracked ice and salt, which is placed exteriorly of the inner perforatecasing 3, after which the cream-can is placed within said casing. Theinner conical receptacle is then filled with ice and salt and placedwithin the cream-can, whereby the cream is subjected to the action ofthe outer and inner freezing agents. Also the pan formed by the annularflange 8 at the top of the inner receptacle is filled with ice, so thatthe cream is entirelyincased within the freezing agents. After the partshave been thus assembled the device is permitted to stand a few minutes,and then the inner receptacle is given a few turns in oppositedirections by means of the handle 10, so as to prevent the cream fromfreezing to the inner sides of the cream-can and also to break up anylumps which may form, and thereby produce an exceedingly smooth andpleasant ice-cream. It will now be understood that the scrapingwings areof different lengths, so as to scrape the entire length of the innerside of the cream can and the outer side of the inner receptacle, and,furthermore, that the edges of the wings are provided with woodenstrips, so as to prevent said wings from scraping off portions of theadjacent walls, respectively, and depositing the scrapings into thecream. When the cream has become frozen sufficiently hard, the innerreceptacle is given a few turns, so as to loosen the wings from thecream, and is then withdrawn, after which the cream-can may be removed.The perforate casing 3 terminates short of the upper edge of the can, soas to afford means for grasping the can to remove the latter.

It will be noted that the inner perforate casing permits of the ice orfreezing agent having direct action upon the exterior of the cream-canand at the same time is held in place, so as to permit of the samecream-can or another can being replaced without again packing the outercan with ice. Furthermore, as the rib 6 on the cream-can fits snuglybetween the two ribs 4 upon the bottom of the outer receptacle, saidcream-can is held against being turned when the inner receptacle isoperated to loosen the cream.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, is

1. In an ice-cream freezer of the class described, the combination withan outer recep- 5o tacle for containing a freezing agent, a creamcanlocated within the receptacle, an inner receptacle for containing afreezing agent and of shorter length than the cream-can, anoutwardly-projecting annular flange provided at the upper end of theinner receptacle, resting upon the upper edge of the cream-can, andsupporting the inner receptacle above the bottom of the cream-can, ascraper-blade carried by the inner wall of the cream-can and equal inlength to the inner receptacle, an other scraper-blade carried by theexterior of the inner receptacle and equal in length to the cream-can,and a handle for turning the inner receptacle, substantially as and forthe purpose set forth.

2. In an ice-cream freezer of the class described, the combination withan outer receptacle for containing a freezing agent, and provided uponthe inner side of the bottom there of, with a pair of spaced parallelribs, a creamcan having a transverse rib provided upon the outer side ofthe bottom thereof, and fitting between the ribs of the outerreceptacle, and an inner receptacle for containing a freez- 7 5 ingagent, adapted to be inserted within the cream-can, and provided with ahandle for turning the inner receptacle, substantially as and for thepurpose set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

HENRY A. MARTIN.

Witnesses:

I. S. MITCHELL, Jr., ELMER HOLLAND.

